Which of the following is true about petroleum?

O It emits harmful radiation.

O It is the most expensive fuel.

O It produces greenhouse gases.

O It provides a clean source of energy.

Jeannie dropped a solid object into a beaker of water and observed it for five minutes. Based on her observations, she determined that only a physical change occurred.

Which of the following is NOT a characteristic of insects? a. one pair of antennae b. five legs c. one or two pairs of wings d. none of the above

Can fish oil fuel an oil lamp?

Some atoms are exceptions to the octet rule by having an expanded octet. which characteristic of needed for an atom to have an extended octet

The first solution will be an unbuffered sucrose solution. Calculate the amount of 0.1 M sucrose stock solution and the amount of dH2O needed to prepare 100 mL of unbuffered 20 mM sucrose.

Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "Submit". Use H3O + for hydronium ion.

What can I expect on the asvab

Consider the reaction N2 (g) + O2 (g) ⇌ 2NO (g) If the equilibrium partial pressures of N2, O2, and NO are 0.22, 0.19, and 0.030 atm, respectively, at 2200°C, what is KP?

What is demetri mendeleyev given credit for developing

Acetone used for rinsing glassware Group of answer choices 1. Pour it down the sink where you are rinsing the glassware 2. Collect it and dispose of it in the organic or acetone waste container 3.